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Genetic Code Error Minimization as a Non-Adaptive But Beneficial Trait

  • Steven E. Massey
Letter to the Editor
  • 30 Downloads

Abstract

In a recent Letter, Di Giulio questions the use of the term ‘neutral’ when describing the process by which error minimization may have arisen as a side-product of genetic code expansion, resulting from the addition of similar amino acids to similar codons (Di Giulio, in J Mol Evol 86(9):593–597, 2018). However, I point out that in this scenario error minimization is non-adaptive, and so ‘neutral’ is an appropriate term to describe its imperviousness to direct selection. Error minimization is a form of mutational robustness, and so commonly viewed as beneficial. This in turn implies that not all beneficial traits may be adaptations generated by direct selection for that trait.

Keywords

Spandrel Emergence Neutral Asymmetry Error minimization 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Biology DepartmentUniversity of Puerto Rico – Rio PiedrasSan JuanUSA

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